<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<style>
    body{
        width: 1200px;
        /*颜色 */
        background-image: url(./img.png);
        background-color: palevioletred;
        /*铺开方式*/
        /*background-repeat: no-repeat;*/
        background-repeat: repeat-x;
        /*background-position: 0 0;*/
        background-position: center top;
    }
</style>
<body>

</body>
</html>